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G. E. NYE. I THREAD FEEDING MEGHANISM FOR KNITTING MACHINES. No. 392,685. Patented Nov. 13, 1888..

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G. E. NYE.

THREAD FEEDING MECHANISM F03, KNITTING MACHINES.

No. 392,685; Patented Nov. 13, I888.

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GEORGE EDYVARD NYE, OF BRISTOL, PENNSYLVANIA, ASSIGNOR OF ONE- I-IALF TO EDW'ARD TREDIOK, OF SAME PLACE.

THREAD-=FEEDING MECHANISM FOR KNITTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 392,685, dated November 13, 1888.

Application filed April 19, 1887. Serial No. 235,329. (No model.)

To all whom, it may concern; tion at the side of the cylinder a stationary Be itknown thatLGEonen EDWARDNYE,Of thread-guiding plate, I), provided with an Bristol, in the county of Bucks and State of opening, a, through which the customary Pennsylvania, have invented certain Improvcthread is delivered, and by which it is prementsinThread-I eeding Mechanism for Knitsented in position to be grasped by the vertiting Machines, of which the following is a cal needles in the usual manner.

specification. In addition to the primary thread, E, which The aim of my invent-ion is to provide a maforms the body of the fabric, I provide a secchine adapted to give stockings or other artiondary or supplemental thread, F, which is 1;) cles produced therein an increased thickness drawn from a spool or bobbin, 0, and conat the ends or other required points by introducted through guides of any suit-able characducing into the fabric at such points and'not ter into the guide D in contact with the prielsewhere an extra thread in addition to the mary thread, so that the primary thread in thread commonly used, the two threads being advancing to the needles will act with fric- 15 combined and introduced as one. To this end tional effect on the secondary thread and tend 6 5 I combine with any ordinary knitting mechto carry the latter forward therewith. \Vhen anism a guide through which the secondary the secondary thread is left free, it will pass thread is introduced at theside of the primary inward in company with the primary thread, thread, so as to pass to the needles therewith, and, united therewith, the two will be knitted 20 a device to stop the delivery of the secondary as one thread into the garment, which is conthread during the formation of those parts of sequently made of double thickness and the fabric in which it is not required, and austrength. tomatic devices for throwing this stop into In order to prevent the feeding of the secand out of action at the proper times. ondary thread into any other than the re- 2 My invention resides in the peculiar conquired portions of the garment, I provide the 7 5 struction and combination of these supplestop or clamp, consisting of the stationary jaw mental parts, as hereinafter recited in detail. G and the clamping-lever H, pivoted thereto.

For the purpose of illustration I have shown The secondary thread is carried between these my improvement applied to a cylinder knittwo parts, so that when the lever is properly 0 ting-machine which is in other respects idenactuated the thread will be pinched fast betical, or practically so, with that shown in Lettween them and prevented from advancing, ters Patent of the United States, granted to me whereupon the strain thereon will have the on the 28th day of April, 1885, No. 316,907. effect of breaking it inside of the th read-guide In the accompanying drawings, Figure l or between the guide and the needles, leaving 5 represents a top plan View of the machine. the end of the secondary thread in contact Fig. 2 is a side elevation of the same. Fig. 3 with the other. The secondary thread,thus is a vertical crosssection on the line a: x of broken, remains at rest, while the primary Fig. 1. thread continues its advance until. the clamp In the drawings, A represents the frame of is opened,wherenpon the secondary thread,

40 the machine; B, the rotary cylinder, in which thus set free, is again drawn forward by the 0 the vertical needles 1 are mounted; O, the dialprimary thread, with which its end remains plate, in which the horizontal needles 2 are constantly in contact. The clampinglever is mounted, and D the canrcylinder. connected by a link, I), to an elbow-lever, c,

The foregoing parts are constructed and arwhich is pivoted to the main frame and sub- 5 ranged to operate in connection with the drivjected to the action of a spring, d,which urges ing devices, needle-actuating cams, and other it backward, and a pattern-chain, e, which at customary parts of the machine in essentially the proper time urges it forward. The pat the same manner as in the patent above retern-chain is mounted on a roll, f, journaled ferred to. in the main frame and actuated through a 50 In applying my improvement I fix in posirat-chet-wheel,j", on its end by a pawlcarry- IOO ing lever, g, pivoted to the main frame. The lever is acted upon by a spring, h, and moved at the proper intervals to advance the pattern-chain by one or more cams, 2", carried by an arm depending from the cylinder. This mechanism for moving the pattern-chain is identical with that in the patent before alluded to,except that, in place of the single cam of the patent, there are, as shown in the drawings, two oppositely-placed cams, i, to effect the advance of the pattern-chain at each semirotation of the cylinder. By varying the style of the chain the clamp may be caused to deliver the secondary thread continuously into the fabric through a number of successive courses, in which case the stocking or other article will be thickened around its entire cireumference; or the chain may be so formed that it will deliver the secondary thread into the successive courses but part way round.

In the drawings I have shown a chain adapted,when moved, at each half-rotation of the needle-cylinder to produce this latter action, the effect of which will be to thicken the stocking on the front side of the knee only by introducing the secondary thread into the successive courses in short lengths, in a manner which will be more fully understood on reference to my application for improved stocking filed March 17, 1887, Serial 231,313.

In order that the secondary thread may be relieved from all tension and resistance at the time it is to be started again into the fabric, I prefer to use slackening devices, such as shown in the drawings; but it is to be understood that these are not a necessary feature of my invention.

The slackening device, as shown, consists of a vertically-reciprocating arm, J, through an eye on which the secondary thread passes between the clamp and the stationary guide K. The lower end of the arm J is connected to a lever, L, pivoted on the main frame, depressed by a spring, M, and lifted at proper intervals by a cam, N.

While the clamp is holding the secondary thread so that it cannot be drawn backward out of the guide D, the bar J rises and draws additional thread from the spool, and before the clamp is released the arm J descends, and thus slackens the thread, so that the slackened end may pass freely into the fabric. This insures the advancement of the secondary thread by the other, the friction of the primary thread being sufficient i n all cases to advance the slackened thread.

Having thus described my invention, what I claim is-- 1. The rotary cylinder, its needles, and the earn-cylinder, as usual, in combination with the fixed guide D, adapted for the passage of two threads in contact with each other to the needles, the jaw G and lever II to control the advance of one thread, the elbow-lever con nected to the clamping-lever, the pattern-chain and spring to actuate lever c, the chain-carrying roll, the ratchet mechanism for turning the roll, and one or more cams, i, movable with the cylinder to actuate the ratchet mechanism, whereby a supplemental thread may be laid into the fabric with the main thread intermittingly and at predetermined times.

2. In combination with the needlecylinder, its needles,and the cam-cylinder,asusualincylinder knitting-machines, the stationary guide I), adapted for the passage of two threads therethrough, the clamp G H, to control one of said threads, the lover a, a suitable connection thence to the clamp-lever H, spring (I, and pattern-chain e, to control said clamp, mechanism for advancing the pattern-chain, the vertically-movable slack-arm J, and the cam N on the needle-cylinder to actuate said arm, whereby a supplemental thread laid into the fabric by and with the main thread may be broken at intervals and slackened at the proper time to insure its advance.

3. In a cylinder knitting-machine, the needle-cylinder, its needles, and the cam-cylinder, as usual, in combination with the fixed guide D, adapted for the passage of two threads, the jaw G and lever H, to clamp one thread, the lever e, the link or connection from the lever c to the clamping-lever, and spring (2, to operate the clamp-lever, the pattern-chain 6, its sustaining-roll, the ratchet mechanism to turn the roll, the cam or cams i on the cylinder to actuate the ratchet mechanism, the vertically-movable slack-arm J, and the cam N on the cylinder to actuate said arm, whereby a supplemental thread may be laid intermittingly into the fabric subject to the control of cams i and N.

In testimony whereof I hereunto set my hand, this 2d day of March, 1887, in the presence of two attesting witnesses.

GEORGE EDWARD NYE.

Witnesses:

J ESSE O. THOMAS, Jos. S. THOMAS, Jr.

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